Which of the following is true of making a proper stop?Group of answer choicesYou should slightly taper down the molten weld pool by flashing the torch off.Flashing the torch off prevents the molten weld pool from solidifying.If the flame is removed too late from the molten weld pool, it will rapidly oxidize.Pockets of oxides add strength to the weld.

What would happen if the secondary flame is suddenly moved away from the molten weld pool?Group of answer choices​The pool will cool off.​The molten pool will not have any change because it takes a while for it to cool and become solid.​The torch flame may go out from the sudden movement.​The molten pool would throw off a large number of sparks.

Why should the end of the welding rod be kept inside the protective envelope of the flame?Group of answer choices​To keep the hot end from oxidizing if it is exposed to the air.​To keep it hot so it will melt into the weld pool faster.​It is easier to see there, and you are less likely to touch it to your hand, arm, or leg.​You can add the rod quicker if it is kept close to the weld pool.

Small molten weld pools are ____ large ones to drip.Group of answer choicesless likely thanas likely asmore likely thanmuch more likely than

Oxidizing Flame is used to weld

Which of the following are fire prevention guidelines?A.Start all fires with newspaper or another highly flammable object.B.Only use matches to start fires.C.Never leave a fire unattended.D.Extinguish all fires and burning coals or embers with water or dirt.E.Hold used matches in your fingers until they are cool.